Macbook, G.Skill RAM, and Heat

So I just installed 2GB of RAM in my 2.0 CD Macbook, and its running extremely hot right now. It never used to run this hot, its noticeable to the touch. The RAM tests out ok, the computer recognizes it, but the heat is a bit alarming. Is this normal?

Also, I tried to google this, and this is a total newbie question, but the RAM chip had stickers on it (not the bar code/warranty stickers). Am I supposed to remove these before installing?

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